How severe is CVE-2024-21980?

CVE-2024-21980 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-21980 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21980?

CVE-2024-21980 primarily affects Amd Epyc 7203 Firmware. In total, 86 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21980?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-21980 have an EU (EUVD) identifier?

Yes. CVE-2024-21980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19586.

When was CVE-2024-21980 published?

CVE-2024-21980 was published on 2024-08-05 and last updated on 2026-06-17.

CVE-2024-21980

CVE-2024-21980 is a high-severity vulnerability in Amd Epyc 7203 Firmware with a CVSS 3.x base score of 7.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.9)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19586
Weakness: CWE-787
Affected product: Amd Epyc 7203 Firmware
Published: 2024-08-05
Last modified: 2026-06-17

Description

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

Frequently asked questions

What is CVE-2024-21980?: Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.
How severe is CVE-2024-21980?: CVE-2024-21980 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-21980 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21980?: CVE-2024-21980 primarily affects Amd Epyc 7203 Firmware. In total, 86 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21980?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-21980 have an EU (EUVD) identifier?: Yes. CVE-2024-21980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19586.
When was CVE-2024-21980 published?: CVE-2024-21980 was published on 2024-08-05 and last updated on 2026-06-17.

References

https://https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3011.html

Affected products (86)

cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7643p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7663p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8434pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8434p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8534pn_firmware:*:*:*:*:*:*:*:*

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